Has anyone cut open a stock GS500F can?
If so do you have any pictures of one cut in half, or cut open so I can see the insides?

I ask because before I go cutting one open, and spending all the extra time, and trying to peel the outer can skin off, still welded to the stock mid-pipe in an attempt to see if the internal parts have enough surface area to put a slip on, onto it(do not have a mid-pipe extension to cut at the 5 5/8" section of the pipe just past the Y)

If the baffle or internal section with holes drilled in it that the baffling surrounds has a section that is solid and enough surface area I can clamp the slip onto. I can clamp the slip-on close to the weld for the stock exhaust can, instead of cutting it at the weld into the silencer and trying to use that surface area to slip on a can.

If I had an extra stock can already cut off the bike laying around I would go cut it open, but I don't. Before I go cutting off the stock can, cutting it open and going, "oh yeah this would have worked still on the bike" and then grinding/cleaning up the edges, welding it "back" on to the stock header/mid-pipe it would be nice to know I could save the welding steps.

Thanks!

Idk if this thread would help at all but maybe you could shoot illenium a pm asking if he ever did get the additional info on the later year mufflers... worth a shot if nobody else replies!

http://gstwins.com/gsboard/index.php?topic=66894.msg805274#msg805274

Good luck and welcome to the forum!! 

Thank you for the welcome.

Thanks, I pm'ed him because that is what I would need.

If nothing else I will cut it off at the middle of the exhaust can and then decide what options I have.
Once I do that I can always post pictures.

That would be awesome! I'm sure you are not the only one to ever wonder about this.

I finally uploaded the images of the stock exhaust cut apart on an 06, it was not fun cutting this turd apart. 











I ended up making a custom down pipe and mid-pipe and mounting a slip-on D&D alum can

Interesting.
Thanks for posting the pics!

That corrugated cardboard looking scroll - does not exist in the 89-02.
Those are sorta 3 chambered and it goes from 1 to 3 and 3-2 and 2 to outside air all through tiny dime sized tubes.
Cool.
Buddha.

If you wanted to make a 100% non-restricted stock exhaust......if you cut the end cap off you could slide out in the entire inside section and have a hollow straight through muffler, with packing between outer skin and open inside.
Be ideal to gut the insert and slide it back in, but that would be alot of work without cutting it into sections.

Then you would have to rejet and still have the boat anchor for an exhaust weight, if you can weld its easier to weld up a custom mid-pipe and make your own slip on or use the base off a Honda 900-954 mid-pipe(these might be stainless or titanium so you may want to consider this, older 900's might not be, I know the one off my 02 and 03 954 were titanium), that way you can mount any number of used CBR900/929/954 cans out there

Way back in 2005 someone wanted me to quiet the thing down after they cored it.
I took a ft long 2" muffler pipe and cut a lot of slots in it sorta in 3 or 4 rows. Then I punched those slots into the flow area.
The result was a very nicely broken up sound which still had a lot of dB but was significantly non hard edged sounding. AKA very burbly.
You could do that, but it is a lot of work.
Cool.
Buddha.

Is that corrugated looking section a catalytic converter or just a flame arrestor?  Hard to tell from the pictures if it is catalyst material or just steel.  I only ask because I plan to use a wideband O2 probe up the tail pipe to check my AFR (just curious, stock bike, 2007).  If it is a cat that would be pointless for me to do!